Improvement in machines for manufacturing horseshoe-blanks



- 3 Sheets-Sheet 1.

F. HOLUB.

Machine for'Manufaeturing Horseshoe Blanks. A

No.-2 05,385. Patented June 25, 18-78.

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WITNESSES I IZVV'ENTOR Fr 2015' 252M, 7/4 F By his .Attorneye D v 5% %@MM 6;

8 Sheets-Sheet 2.

F. HOLUB. Machine for Manufacturing Horseshoe Blanks.

No. 205,385. Patented June 25,1878.

WITNESSES I M;

By his Attorneys- N. PErEns.

SheetsSh1eet 3 F. HO LUB.

Machine for Manufacturing Horseshoe Blanks;

' 7 Patented June 25,1878. Y

i No. 205,385.

. By his flatorneys I N P s PHOTWLITHOIGRAFHER, WASHINGTON. u c

in the groove D of the first set of rolls.

UNITED STATES PATENT OFFICE.

FRANK HOLUB, OF CHICAGO, ILLINOIS, ASSIGNOR OF TWO-THIRDS HIS RIGHT TONATHAN E. PLATT AND EDWIN THORN, OF SAME PLACE.

IMPROVEMENT IN MACHINES FOR MANUFACTURING HORSESHOE-BLANKS.

Specification forming part of Letters Patent No. 205,385, dated June 25,1878; application filed June 15, 1878.

To all whom it may concern:

Be it known that I, FRANK HOLUB, of Chicago, in the county of Cook andState of Illinois, have invented an Improved Machine for ManufacturingHorseshoe-Blanks, of which the following is a specification:

The object of my invention is to form a series of horseshoe blanks bypassinga heated bar through a train of three sets of rolls, one setbehind the other, at a single operation and with a single heating of thebar.

My invention consists in the formation of the dies upon the rolls in asuitable manner for successive operation upon the bar, and in theircombination with one another and with suitable guideways, to constitutea horseshoeblank-forming machine.

In the accompanying drawings, Figure 1 rolls; and Figs. 8 and 9 areperspective views.

of the bar and blanks in diiferent stages of formation.

7 A indicates a roller-frame of any ordinary construction; B B B,ordinary heavy sets of rolls, with suitable gearing for operating them;and C C, trough-shaped guideways between the sets of rolls, fordirecting the bar from the first set to the second, and from the secondset to the third.

D indicates the first forming-die,.working The heated bar is passed intothis groove and under the die while the machine is in motion, and isconveyed by the guideway to the second set of rolls, provided with thedie E and groove E. The die E is provided with two or more depressions,e, of a distance apart corresponding to the length of the individualblanks to be formed by that die. These depressions are for the purposeof swaging up a projection upon the center of each blank, to constitutethe toe-calk, as illustrated in the drawings.

From the second set of rolls the partiallyformed series of blanks in thebar passes to the third set, and enters between the groove F and the dieG to be finished. Die G is provided with depressions g, for finishingthe swaging of the toe-calks, and with creasers ahd punches h, forforming the creases and nail-holes in the blank, as is well understoodin the art.

The bar J, after having passed through the first set of rolls, is giventhe conformation shown at KKin Fig. 8. After having passed through thesecond set of rolls it is given the conformation shown at L L in Figs. 8and 9, and after having passed through the third set of rolls it isgiven the finished conformation shown at M M in Fig. 9, having thetoe-calk fully developed, and the creases and nail-holes.

The sets of rolls are so adjusted with reference to one another, andtheir gearing is so calculated and constructed, that the dies upon thesecond and third sets will register properly on the blank as it entersthem, so as to prevent waste of stock and to carry out the formation ofthe blanks accurately from the beginning, the last set of diesregistering on the blank properly as it comes from the second set. v

If I wish to form a series of blanks without toe-calks, I can employcollars or dies without the depressions e and y, but in other respectsof the form illustrated in the drawings.

By passing the bar through the third set of rolls after it has passedthrough the first and second sets, I am enabled to produce a fin ishedtoecalk, projecting the proper distance from the bottom of the shoe,which cannot be accomplished by a single swaging operation.

What I claim as new, and desire to secure by Letters Patent, is-

The three sets of rolls provided, respectively, with forming-dies andgrooves, as de scribed, in combination with the guideways between themand with one another, for form ing a series of blanks from a heated barat a single operation, substantially as described.

In testimony whereof I have hereunto subscribed my name.

FRANK HOLUB. Witnesses:

MARCUS S. HOPKINS, F. S'rrrH.

